April
Wednesday 29 July 2009 photo 2/2
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Har man tråkigt så har man.
The anus is an opening at the opposite end of an animal's digestive tract from the mouth. Its function is to expel feces, unwanted semi-solid matter produced during digestion, which, depending on the type of animal,? may be one or more of: matter which the animal cannot digest, such as bones food material after all the nutrients have been extracted, for example cellulose or lignin; ingested matter which would be toxic if it remained in the digestive tract; and dead or excess gut bacteria.
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